255
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| Millennium |
| 1st millennium |
| Centuries |
| Decades |
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| Years |
| 255 by topic |
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| Arts, history, and science |
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| Countries |
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| Lists of leaders |
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| Birth and death categories |
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| Establishments and disestablishments categories |
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| Works category |
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| Gregorian calendar | 255 CCLV |
| Ab urbe condita | 1008 |
| Assyrian calendar | 5005 |
| Balinese saka calendar | 176–177 |
| Bengali calendar | −338 |
| Berber calendar | 1205 |
| Buddhist calendar | 799 |
| Burmese calendar | −383 |
| Byzantine calendar | 5763–5764 |
| Chinese calendar | 甲戌年 (Wood Dog) 2951 or 2891 — to — 乙亥年 (Wood Pig) 2952 or 2892 |
| Coptic calendar | −29 – −28 |
| Discordian calendar | 1421 |
| Ethiopian calendar | 247–248 |
| Hebrew calendar | 4015–4016 |
| Hindu calendars | |
| - Vikram Samvat | 311–312 |
| - Shaka Samvat | 176–177 |
| - Kali Yuga | 3355–3356 |
| Holocene calendar | 10255 |
| Iranian calendar | 367 BP – 366 BP |
| Islamic calendar | 378 BH – 377 BH |
| Javanese calendar | 134–135 |
| Julian calendar | 255 CCLV |
| Korean calendar | 2588 |
| Minguo calendar | 1657 before ROC 民前1657年 |
| Nanakshahi calendar | −1213 |
| Seleucid era | 566/567 AG |
| Thai solar calendar | 797–798 |
| Tibetan calendar | ཤིང་ཕོ་ཁྱི་ལོ་ (male Wood-Dog) 381 or 0 or −772 — to — ཤིང་མོ་ཕག་ལོ་ (female Wood-Boar) 382 or 1 or −771 |
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Year 255 (CCLV) was a common year starting on Monday of the Julian calendar. In Rome, it was called Year of the Consulship of Valerianus and Gallienus (also called year 1008 Ab urbe condita). This year has been called 255 since the early early medieval period. This is when the Anno Domini calendar era was used in Europe to name years.
Events
By place
China
- Sima Shi stops Guanqiu Jian and Wen Qin's rebellion.
- March 23 – Sima Shi dies
By topic
Science
- Ma Jun, Chinese mechanical engineer, invents the south-pointing chariot. This is a compass that uses a differential gear, not magnetics.
Births
- January 6 – Marcellus I, bishop of Rome (d. 309)
- Dorotheus of Tyre, Syrian bishop and martyr (d. 362)
- Zhang Gui, Chinese governor of the Jin Dynasty (d. 314)
- Zuo Fen, Chinese poet of the Western Jin Dynasty (d. 300)
- Saint Helena, Roman empress. She apparently discovered Christ’s cross. She was also the mother of Emperor Constantine (d. 318)
Deaths
- February 23 – Guo Huai (or Boji), Chinese general
- March 16 – Guanqiu Jian, Chinese general and politician
- March 23 – Sima Shi, Chinese general and regent (b. 208)[1]
- Fu Gu (or Lanshi), Chinese official and politician (b. 209)
- Liu Zan (or Zhengming), Chinese general (b. 183)
- Sun Luyu (or Xiaohu), Chinese princess